Photoemission study of YBa2Cu3Oy thin films under light illumination

D. Asakura, J. W. Quilty, K. Takubo, S. Hirata, T. Mizokawa, Yuji Muraoka, Z. Hiroi

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The photovoltage due to the photocarrier injections (PCI) effect at the heterojunction of YBCO/STO:Nb was investigated using x-ray photoemission spectroscopy (XPS) combined with the laser source. The magnitude of the photovoltaic-induced shift in the core level was found to be 0.78 V at a laser frequency of 30 Hz at 130 K. The relaxation time of the photovoltage and maximum photovoltage was also analyzed. It was concluded that the photovoltage can be slightly enhanced with cooling from 300 to 130 K and saturated below 130 K.

Original languageEnglish
Article number247006
JournalPhysical Review Letters
Volume93
Issue number24
DOIs
Publication statusPublished - Dec 10 2004
Externally publishedYes

Fingerprint

photovoltages
photoelectric emission
illumination
thin films
lasers
heterojunctions
relaxation time
injection
cooling
shift
spectroscopy
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Asakura, D., Quilty, J. W., Takubo, K., Hirata, S., Mizokawa, T., Muraoka, Y., & Hiroi, Z. (2004). Photoemission study of YBa2Cu3Oy thin films under light illumination. Physical Review Letters, 93(24), [247006]. https://doi.org/10.1103/PhysRevLett.93.247006

Photoemission study of YBa2Cu3Oy thin films under light illumination. / Asakura, D.; Quilty, J. W.; Takubo, K.; Hirata, S.; Mizokawa, T.; Muraoka, Yuji; Hiroi, Z.

In: Physical Review Letters, Vol. 93, No. 24, 247006, 10.12.2004.

Research output: Contribution to journalArticle

Asakura, D, Quilty, JW, Takubo, K, Hirata, S, Mizokawa, T, Muraoka, Y & Hiroi, Z 2004, 'Photoemission study of YBa2Cu3Oy thin films under light illumination', Physical Review Letters, vol. 93, no. 24, 247006. https://doi.org/10.1103/PhysRevLett.93.247006
Asakura, D. ; Quilty, J. W. ; Takubo, K. ; Hirata, S. ; Mizokawa, T. ; Muraoka, Yuji ; Hiroi, Z. / Photoemission study of YBa2Cu3Oy thin films under light illumination. In: Physical Review Letters. 2004 ; Vol. 93, No. 24.
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